EP1057560A1 - Einpressaggregat für eine Druckgiessmaschine - Google Patents

Einpressaggregat für eine Druckgiessmaschine Download PDF

Info

Publication number
EP1057560A1
EP1057560A1 EP99109360A EP99109360A EP1057560A1 EP 1057560 A1 EP1057560 A1 EP 1057560A1 EP 99109360 A EP99109360 A EP 99109360A EP 99109360 A EP99109360 A EP 99109360A EP 1057560 A1 EP1057560 A1 EP 1057560A1
Authority
EP
European Patent Office
Prior art keywords
spring element
press
unit according
drive
push rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99109360A
Other languages
German (de)
English (en)
French (fr)
Inventor
Roland Fink
Norbert Dr.-Ing. Erhard
Herbert Noschilla
Bruno Stillhard
Ronald Siegrist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oskar Frech GmbH and Co KG
Original Assignee
Oskar Frech GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oskar Frech GmbH and Co KG filed Critical Oskar Frech GmbH and Co KG
Priority to EP99109360A priority Critical patent/EP1057560A1/de
Priority to PCT/EP2000/004977 priority patent/WO2000072998A1/de
Priority to AT00943750T priority patent/ATE332778T1/de
Priority to DE50013156T priority patent/DE50013156D1/de
Priority to CZ20010418A priority patent/CZ300224B6/cs
Priority to EP00943750A priority patent/EP1113892B1/de
Priority to HK01106202D priority patent/HK1035343A1/xx
Priority to JP2000621098A priority patent/JP4558954B2/ja
Priority to ES00943750T priority patent/ES2267548T3/es
Priority to PL00345746A priority patent/PL193801B1/pl
Priority to US09/762,047 priority patent/US6581670B1/en
Publication of EP1057560A1 publication Critical patent/EP1057560A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment

Definitions

  • the invention relates to a press-in unit for a die casting machine, especially for a hot chamber die casting machine for processing metal melts with a casting piston for pressing the casting material into a mold, the can be acted upon via a push rod which is connected to one of an electric motor driven linear drive is connected, and after the filling phase of the mold to achieve a pressure is kept in a pressure phase in the casting material.
  • a press-in unit of this type is known from EP 0 430 616 A1 known.
  • a spindle becomes the drive provided to a mother.
  • the drive of the with the linear drive connected plunger is powered by an electric motor driven belt made.
  • the belt drive acts via an electromagnetically controllable disc clutch on the spindle, so that the feed speed of the pouring piston and, after filling the Form, the pressure to be held in the casting material can be controlled can.
  • a speed-dependent signal is used for control, from a tachometer connected to the spindle drive is delivered.
  • a drive of this type for the press-in unit is relative complex.
  • the control and regulation of the disc clutch harbors mainly because of their susceptibility to wear Couplings disadvantages in themselves.
  • the present invention is based on the object Press-in unit of the type mentioned in the simplest possible Form way so that especially during the transition undesirable from the mold filling phase to the pressure maintenance phase Pressure peaks are avoided, which are caused by the system the inertia forces inherent in stopping the Drive and arise in the transition to pressure control.
  • the spring element can now do so be designed so that the resulting from its bias Reactive force on the casting piston is large enough to move the Achieving the necessary pressure in the casting material Apply axial force to the casting piston.
  • the invention is thus in a press-in unit of the type mentioned kind of accomplished two things. For one, they can slow down the drive by the masses of the electric motor and of the moment of inertia caused by the transmission. The pouring plunger is thus filled from the time of switching no longer moved on pressure. The moment of inertia occurring additional way becomes the preload of the Spring element used and the bias generated then is used to apply an axial force to the casting piston exploited, which is large enough to the desired emphasis in the casting material.
  • an elastic element can be used as the spring element
  • Plastic ring can be provided between two Flanges are held, one of which is on the push rod held and the other telescopic with one on the push rod guided sleeve is firmly connected. Through the relative movement the plastic ring is between the push rod and the sleeve compressed and that by an amount that the adjustment the push rod corresponds to that by the caster of the drive after the braking process is effected.
  • the push rod can one Have plastic ring penetrating extension on the the sleeve is guided.
  • the one between the extension and the push rod The intended paragraph can be used as an attachment to the push rod held disc or for a pressure sensor assigned to it serve.
  • a liquid spring known per se can also serve as the spring element be provided (LUEGER Lexicon of Technology, Volume 12 - Vehicle Technology - Edition 1967, publishers DVA Stuttgart, Page 223).
  • Such cylinder / piston units usually filled with oil can with die casting machines Pressing forces occurring in the order of several Tons provide the necessary travel, whereby here too the spring force is applied to the casting pistons can be exploited.
  • spring element and sleeve arrangement to be coordinated so that the Extension adjustable by a certain path relative to the sleeve is to avoid that the push rod or its extension strikes mechanically at the end of the sleeve.
  • the electric drive can also be controlled in this way be that the spring element does not have a predetermined Dimension is compressed.
  • the Spring element connected to the control of the drive Be assigned to the sensor which is exerted by the spring element Detects axial force and controls the torque of the drive that a very specific force on the Pouring plunger and thereby a certain pressure in the melt in the mold generated during cooling becomes.
  • a linear drive can be a spindle and nut Threaded drive or a rack and pinion drive is provided his.
  • the invention is in the drawing using an exemplary embodiment shown and will be explained in the following.
  • the only figure shows a press-in unit for a hot chamber die casting machine for processing metal melts.
  • an electric motor for example an asynchronous motor or other variants of servo motors, with one not gearbox shown in detail and provided with a coupling part 2, which drives a threaded spindle 3 for a rotary movement.
  • the threaded spindle 3 is sealed in a protective housing 5 guided.
  • the mother 4 stands over a spanning the free end of the spindle 3 Extension 8 with a push rod 9 in connection, which in turn sealed out of the housing 5 and with an extension 10 is provided with a smaller diameter.
  • a first disk 11 is movably guided on the extension 10, which is applied to a pressure sensor 12, for example executed in the manner of a piezoelectric element can be.
  • This pressure sensor 12 is connected to a signal line 13 with a multi-parameter controller not shown in detail because it is known that controls motor 1.
  • a sleeve 14 with an end plate 15 slidably mounted, between the end plate 15 and the disk 11 bearing on the pressure sensor 12 a spring element in the form of a plastic ring 16 is arranged which is also penetrated by the extension 10.
  • the sleeve 14 is at the end facing away from the disc 15 with a connection end 17 for connection to the not shown
  • Provide casting piston with the free end of the extension 10 provided with a shoulder 18 of larger diameter is that holds the sleeve on the extension 10 and also for a certain Biasing of the plastic ring 16 can serve.
  • This Paragraph 18 is the distance a from an inner end surface 19 of the sleeve 14 removed.
  • This press-in unit will now put into operation to melt a metal in known Way out of the crucible of a hot chamber die casting machine press the casting cylinder and a riser pipe into the mold, then the electric drive 1 via the multi-parameter controller, not shown excited to a rotation of the spindle 3 what leads to the nut 4 from the position shown the spindle 3 runs down along with the push rod 9 also pushes down, with the for the filling process of the mold necessary speed.
  • the rotary drive of the spindle 3 switched from speed control to torque control and for this purpose the engine 1 is braked. Because both the engine and the one not shown in detail Set the gearbox and everything in rotation by the drive Sharing a mass moment of inertia it is not possible to continue turning the spindle 3 from the changeover time to stop immediately.
  • the spring element 16 is provided, that in this case it squeezes and takes the path that the pouring plunger would otherwise have to cover have to.
  • the arrangement is such that the drive distance traveled is smaller than dimension a.
  • the spring element 16 therefore expresses itself slightly by an amount less than a together and is therefore put under tension.
  • the design can be done so that the set Travel - which is less than a - one of the spring element 16 exerted reaction force on the sleeve 14 and so that acts on the plunger, which is large enough to in the melt the required pressure due to a Force, for example, in the order of 7-8 tons (70-80 KN) to effect.
  • a Force for example, in the order of 7-8 tons (70-80 KN) to effect.
  • the one used in the exemplary embodiment Plastic ring can apply these forces without being too large to build. It would also be possible to use a liquid spring, where the compressibility of liquids, in particular Oil is used at high pressures.
  • the engine 1 can be adjusted to a holding torque so that none complicated measures to maintain the emphasis in the Melt are required.
  • the pressure sensor 12 is provided, which is a measure of releases the force from the spring 16 to the sleeve 14 and so that it is exerted on the plunger.
  • the disc 11 is as previously explained, slidably arranged on the extension 10. The discs 11 and 15 are therefore the same Axial force applied. This force can be above the previously mentioned Multi-parameter controller and the drive motor 1 on one certain size can be adjusted as long as it is ensured is that the deflection path for the spring element 16th does not become larger than dimension a.
  • the invention enables the drive of a press-in unit for hot chamber die casting machines with electromechanical Means and offers the advantage of a relatively simple Control and regulation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
EP99109360A 1999-06-01 1999-06-01 Einpressaggregat für eine Druckgiessmaschine Withdrawn EP1057560A1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP99109360A EP1057560A1 (de) 1999-06-01 1999-06-01 Einpressaggregat für eine Druckgiessmaschine
PCT/EP2000/004977 WO2000072998A1 (de) 1999-06-01 2000-05-31 Einpressaggregat für eine druckgiessmaschine
AT00943750T ATE332778T1 (de) 1999-06-01 2000-05-31 Einpressaggregat für eine druckgiessmaschine
DE50013156T DE50013156D1 (de) 1999-06-01 2000-05-31 Einpressaggregat für eine druckgiessmaschine
CZ20010418A CZ300224B6 (cs) 1999-06-01 2000-05-31 Výtlacný agregát pro tlakový licí stroj
EP00943750A EP1113892B1 (de) 1999-06-01 2000-05-31 Einpressaggregat für eine druckgiessmaschine
HK01106202D HK1035343A1 (en) 1999-06-01 2000-05-31 Injection unit for a pressure die casting machine
JP2000621098A JP4558954B2 (ja) 1999-06-01 2000-05-31 ダイカストマシンのための射出装置
ES00943750T ES2267548T3 (es) 1999-06-01 2000-05-31 Unidad de moldeo a presion para una maquina de moldeo a presion.
PL00345746A PL193801B1 (pl) 1999-06-01 2000-05-31 Zespół wtłaczający maszyny ciśnieniowej
US09/762,047 US6581670B1 (en) 1999-06-01 2000-05-31 Injection unit for a pressure die casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99109360A EP1057560A1 (de) 1999-06-01 1999-06-01 Einpressaggregat für eine Druckgiessmaschine

Publications (1)

Publication Number Publication Date
EP1057560A1 true EP1057560A1 (de) 2000-12-06

Family

ID=8238155

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99109360A Withdrawn EP1057560A1 (de) 1999-06-01 1999-06-01 Einpressaggregat für eine Druckgiessmaschine
EP00943750A Expired - Lifetime EP1113892B1 (de) 1999-06-01 2000-05-31 Einpressaggregat für eine druckgiessmaschine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00943750A Expired - Lifetime EP1113892B1 (de) 1999-06-01 2000-05-31 Einpressaggregat für eine druckgiessmaschine

Country Status (10)

Country Link
US (1) US6581670B1 (cs)
EP (2) EP1057560A1 (cs)
JP (1) JP4558954B2 (cs)
AT (1) ATE332778T1 (cs)
CZ (1) CZ300224B6 (cs)
DE (1) DE50013156D1 (cs)
ES (1) ES2267548T3 (cs)
HK (1) HK1035343A1 (cs)
PL (1) PL193801B1 (cs)
WO (1) WO2000072998A1 (cs)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10256427B3 (de) * 2002-12-02 2004-02-26 Drm Druckguss Gmbh Vorrichtung zum Druckgießen von Metallen
CN104703729A (zh) * 2012-10-12 2015-06-10 东洋机械金属株式会社 电动压铸机
WO2023046891A1 (de) * 2021-09-24 2023-03-30 Entec-Stracon Gmbh Vorrichtung und verfahren zur füllung einer giessform einer druckgiessmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006142369A (ja) * 2004-11-24 2006-06-08 Ykk Corp 電動式射出ユニット及び同ユニットを備えたダイキャストマシンと電動式射出方法
JP4646695B2 (ja) * 2005-05-16 2011-03-09 東洋機械金属株式会社 ダイカストマシン
JP2006315072A (ja) * 2005-05-16 2006-11-24 Toyo Mach & Metal Co Ltd ダイカストマシン
CZ307358B6 (cs) * 2007-05-15 2018-06-27 Ĺ koda Auto a. s. Licí píst
JP5384044B2 (ja) * 2008-07-04 2014-01-08 東洋機械金属株式会社 ダイカストマシン
RU2633813C1 (ru) * 2016-04-05 2017-10-18 Кожокин Тимофей Иванович Шток горизонтальной машины литья под давлением
DE102020204634A1 (de) * 2020-04-09 2021-10-14 Oskar Frech Gmbh + Co. Kg Gießkolbensystem und Gießverfahren für eine Druckgießmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908322A (fr) * 1944-12-20 1946-04-05 Dispositif de moulage sous pression
DE4101551A1 (de) * 1991-01-21 1992-07-23 Janowski Gmbh Vorrichtung zur daempfung von druckspitzen
EP0618025A1 (de) * 1993-03-30 1994-10-05 Oskar Frech Gmbh & Co. Einpressaggregat
JPH07155925A (ja) * 1993-12-10 1995-06-20 Hitachi Ltd ダイカストマシンの射出圧力制御方法
DE4441735A1 (de) * 1994-11-23 1996-05-30 Hugo Kunz Druckgießkolben, insbesondere für Kaltkammer-Druckgießmaschinen

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1517113A (fr) * 1967-02-03 1968-03-15 Groupe d'injection pour machine à mouler sous pression
US3920099A (en) * 1971-12-30 1975-11-18 Heich Die Casting Corp Apparatus for lubricating a die structure employed in die casting operations
US3971432A (en) * 1973-06-11 1976-07-27 Donald Paul Hardey Die casting machine
CH635255A5 (de) 1978-07-19 1983-03-31 Buehler Ag Geb Druckgiessmaschine.
JPS5954457A (ja) * 1982-09-21 1984-03-29 Ube Ind Ltd 高速射出用開閉弁装置
JPS5968652U (ja) * 1982-10-30 1984-05-09 株式会社アーレスティ ダイカスト機
DE3433121C1 (de) * 1984-09-08 1985-12-05 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Verfahren und Vorrichtung zur Dämpfung der am Ende der Formfüllphase auftretenden Druckspitze bei Druckgießmaschinen
US4884621A (en) * 1987-06-13 1989-12-05 Honda Giken Kogyo Kabushiki Kaisha Hydraulic control method for implements
JPH0286733U (cs) * 1988-12-23 1990-07-10
JPH0722813B2 (ja) * 1989-01-30 1995-03-15 宇部興産株式会社 射出装置
JPH061784Y2 (ja) * 1989-04-06 1994-01-19 株式会社積水工機製作所 発泡成形機の型閉め装置
CH680916A5 (cs) * 1989-11-10 1992-12-15 Vickers Inc
GB8927088D0 (en) 1989-11-30 1990-01-31 Frys Metals Ltd Casting apparatus
JPH07121541B2 (ja) * 1990-03-07 1995-12-25 ファナック株式会社 射出成形機の圧力制御方法
JP2668740B2 (ja) * 1990-06-06 1997-10-27 日清紡績 株式会社 防振装置
WO1994022655A1 (de) 1993-04-05 1994-10-13 Procontrol Ag Spritzgiessmaschine mit elektrischem antrieb sowie verfahren zur führung derselben
US5632321A (en) * 1996-02-23 1997-05-27 Prince Machine Corporation Die casting machine with compound docking/shot cylinder
JPH1058504A (ja) * 1997-05-19 1998-03-03 Fanuc Ltd 電動式射出成形機における型締め方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908322A (fr) * 1944-12-20 1946-04-05 Dispositif de moulage sous pression
DE4101551A1 (de) * 1991-01-21 1992-07-23 Janowski Gmbh Vorrichtung zur daempfung von druckspitzen
EP0618025A1 (de) * 1993-03-30 1994-10-05 Oskar Frech Gmbh & Co. Einpressaggregat
JPH07155925A (ja) * 1993-12-10 1995-06-20 Hitachi Ltd ダイカストマシンの射出圧力制御方法
DE4441735A1 (de) * 1994-11-23 1996-05-30 Hugo Kunz Druckgießkolben, insbesondere für Kaltkammer-Druckgießmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10256427B3 (de) * 2002-12-02 2004-02-26 Drm Druckguss Gmbh Vorrichtung zum Druckgießen von Metallen
CN104703729A (zh) * 2012-10-12 2015-06-10 东洋机械金属株式会社 电动压铸机
CN104703729B (zh) * 2012-10-12 2017-03-08 东洋机械金属株式会社 电动压铸机
WO2023046891A1 (de) * 2021-09-24 2023-03-30 Entec-Stracon Gmbh Vorrichtung und verfahren zur füllung einer giessform einer druckgiessmaschine

Also Published As

Publication number Publication date
JP2003500219A (ja) 2003-01-07
WO2000072998A1 (de) 2000-12-07
EP1113892B1 (de) 2006-07-12
CZ300224B6 (cs) 2009-03-25
CZ2001418A3 (en) 2001-05-16
ES2267548T3 (es) 2007-03-16
JP4558954B2 (ja) 2010-10-06
PL345746A1 (en) 2002-01-02
DE50013156D1 (de) 2006-08-24
US6581670B1 (en) 2003-06-24
EP1113892A1 (de) 2001-07-11
PL193801B1 (pl) 2007-03-30
HK1035343A1 (en) 2001-11-23
ATE332778T1 (de) 2006-08-15

Similar Documents

Publication Publication Date Title
DE60214802T2 (de) Verfahren und Werkzeugschliesseinheit für Spritzgiessmaschinen
DE69608324T2 (de) Spritzgiessmaschine mit offenem Zugriff zum Formbereich
DE102010023700B4 (de) Stellvorrichtung für eine selbstverstärkende Bremseinrichtung und selbstverstärkende Bremseinrichtung
DE4412382C2 (de) Schließhöhen-Justiereinrichtung für eine Presse
DE3626455A1 (de) Spindelpresse
EP1057560A1 (de) Einpressaggregat für eine Druckgiessmaschine
DE4331302A1 (de) Presse
EP2582995A1 (de) Scheibenbremse in hydraulischer selbstverstärkender bauart mit parkbremseinrichtung
DE102005004135B4 (de) Formverklemmeinheit und -verfahren
EP0618025B1 (de) Einpressaggregat
EP1237704B1 (de) Vorrichtung und verfahren zur durchführung einer zweistufigen linearen bewegung
DE2621727A1 (de) Presse mit veraenderbarem abstand eines stoessels von einem tisch und entlastbarem druckkissen
EP1355775A1 (de) Regelverfahren für die hydraulische unterstützung eines elektrischen antriebs
WO2001085425A1 (de) Spritzaggregat sowie verfahren zum gesteuerten anfahren und anpressen einer spritzdüse
DE3238202C2 (cs)
DE10323309B4 (de) Vorrichtung und Verfahren zum Schließen von Werkzeugaufnahmeplatten
DE10003325C2 (de) Vorschubeinrichtung für den Oberschlitten einer Presse
EP1280647B1 (de) Spritzgiessmaschine mit exzenterantrieb
DE10102464C1 (de) Formmaschine
DD203606A1 (de) Reibungskupplung und-bremse mit automatischer verschleissnachstellung
DE3424515C2 (cs)
DE4302788A1 (de) Verfahren zur translatorischen Bewegung von Bauteilen und Bewegungsantrieb zur Durchführung des Verfahrens
DE1529752C (de) Vorrichtung zur Durchfuhrung eines Verfahrens zum volligen oder angenäherten Ausgleichen der axialen Temperaturunter schiede der Masse im Sammelraum einer Schnecken Spritzgießmaschine
DE102023101166A1 (de) Schließeinheit für eine Spritzgussmaschine und Verfahren zum Betrieb einer Schließeinheit
DE10040322B4 (de) Kunststoffspritzgießmaschine und Antriebsvorrichtung für eine Kunststoffspritzgießmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010607

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566